<u>Answer:</u> The pH of resulting solution is 10.893
<u>Explanation:</u>
To calculate the number of moles for given molarity, we use the equation:
Molarity of ethylamine solution = 0.25 M
Volume of solution = 80 mL
Putting values in above equation, we get:
Molarity of HCl = 0.100 M
Volume of solution = 20.0 mL
Putting values in above equation, we get:
- <u>For :</u>
Molarity of solution = 0.25 M
Volume of solution = 80 mL
Putting values in above equation, we get:
The chemical reaction for ethylamine and HCl follows the equation:
<u>Initial:</u> 0.02 0.002 0.02
<u>Final:</u> 0.018 - 0.022
Volume of solution = 20.0 + 80.0 = 100 mL = 0.100 L (Conversion factor: 1 L = 1000 mL)
To calculate the pOH of basic buffer, we use the equation given by Henderson Hasselbalch:
We are given:
= negative logarithm of base dissociation constant of ethylamine =
pOH = ?
Putting values in above equation, we get:
To calculate pH of the solution, we use the equation:
Hence, the pH of the solution is 10.893